sealing-box: move BoxLocals (code motion, nfc)

[reprap-play.git] / sealing-box.scad.m4

diff --git a/sealing-box.scad.m4 b/sealing-box.scad.m4
index c3ff461c11b353fb01d945f44dbaba4fe3d3fdcd..a076ddd0491a3983c5b7d230f67a5dc7d7b5d4ae 100644 (file)
--- a/sealing-box.scad.m4
+++ b/sealing-box.scad.m4
@@ -5,6 +5,7 @@
 // A. Rectangular boxes
 //      1. include <sealing-box.scad>
 //      2. assign() values to (xxx these should be $ variables)
+//           $sealingbox_wallthick
 //           ts_xbox (outer dimensions)
 //           ts_ybox (outer dimension)
 //           ts_zbox (??? xxx)
@@ -16,7 +17,18 @@
 //
 // B. Complicated shapes, but harder work
 //      1. Be a .m4 file and m4_include sealing-box.scad.m4
-//      2. Maybe define your own BoxDoShapeRect xxx tbd
+//      2. Define your own BoxDoShapeSomething like BoxDoShapeRect
+//      3. Invoke BoxUseShape
+//      4. Use the Box and Lid modules generated
+
+m4_define(`BoxLocals',`
+  wall = $sealingbox_wallthick;
+
+  ts_cidoff = (ts_cnrrad * (1-.7) + wall * .8) * [1,1];
+
+  ts_xbox_lin = ts_xbox - ts_cnrrad*2;
+  ts_ybox_lin = ts_ybox - ts_cnrrad*2;
+')
 
 m4_dnl Box_Part($1=transl_x,$2=transl_y, $3=rot_z,$4=mirror_xy)
 m4_dnl          $5=kind, $6=kindargs, $7=profile(profileargsargs))
@@ -59,11 +71,6 @@ m4_define(`BoxPart_Extrude_Arc',`
     }
 ')
 
-ts_cidoff = (ts_cnrrad * (1-.7) + wallthick * .8) * [1,1];
-
-ts_xbox_lin = ts_xbox - ts_cnrrad*2;
-ts_ybox_lin = ts_ybox - ts_cnrrad*2;
-
 m4_dnl BoxDoShapeRect(`profile(profileargs)');
 m4_define(`BoxDoShapeRect',`
   Box_Part(0,               ts_cnrrad,    0,0, Linear,`ts_ybox_lin', `$1' )
@@ -79,22 +86,25 @@ m4_define(`BoxDoShapeRect',`
 m4_dnl '
 
 module SealingBox_WallProfile(){
+  BoxLocals
   z = ts_zbox - innertube - tubesealrad;
-  translate([0, -0.1]) square([wallthick, z]);
+  translate([0, -0.1]) square([wall, z]);
   translate([tubesealrad, z]) circle(r=tubesealrad, $fn=20);
 }
 
 module SealingBox_FloorProfile(){
-  mirror([0,1]) square([wallthick, floorth]);
+  BoxLocals
+  mirror([0,1]) square([wall, floorth]);
 }
 
 module SealingBox_LidProfile(){
+  BoxLocals
   rad = tubesealrad + innertube;
-  morex = wallthick;
+  morex = wall;
   difference(){
     translate([-lidoverlap - innertube,
               ts_zbox - lidoverhang - innertube])
-      square([lidoverlap + innertube + wallthick,
+      square([lidoverlap + innertube + wall,
              lidoverhang + innertube + ceilth]);
     hull(){
       translate([tubesealrad,
@@ -111,19 +121,22 @@ module SealingBox_LidProfile(){
 }
 
 module SealingBox_CeilProfile(){
+  BoxLocals
   translate([0, ts_zbox])
-    square([wallthick*2, ceilth]);
+    square([wall*2, ceilth]);
 }
 
 // BoxDoShape(Basename,BoxDoShapeSomething)
 // generates modules BasenameBox and BasenameLid
 m4_define(`BoxUseShape',`
   module $1Box(){
+    BoxLocals
     $2(SealingBox_WallProfile(););
     hull(){ $2(SealingBox_FloorProfile();); }
   }
 
-  module $1Lid(){ ////toplevel
+  module $1Lid(){
+    BoxLocals
     $2(SealingBox_LidProfile(););
     hull(){ $2(SealingBox_CeilProfile();); }
   }